Used as a protected intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. The tert-butoxycarbonyl (Boc) group stabilizes the pyrrolopyridine core during multi-step reactions, allowing selective modification at other sites. It is commonly employed in medicinal chemistry for constructing drug candidates targeting cancer, inflammation, and central nervous system disorders. The protecting group can be easily removed under mild acidic conditions, enabling efficient deprotection without degrading sensitive structures. Its solubility in common organic solvents facilitates use in coupling reactions and heterocycle formation.